70 



white color or often reddish brown on a young shoot and shiny and 

 glabrous except the pubescent line on the upper portion of a node. 

 Leaves when young lanceolate or oblanceolate remotely serrulate or 

 subentire, and when matured linear-lanceolate, pointed at the apex, 

 slightly tapering at the base, crenately serrulate, smooth, but sometimes 

 very slightly downy when young, bright green on the upper surface 

 and glaucous on the under surface with a whitish prominent midrib at 

 the both surfaces, petiolate ; lamina usually 12 — 15 cm long and 17 — 

 20 mm broad, often 18 cm or more long, 30 mm or more broad on 

 a vigorous shoot, stipules narrowly and obliquely lanceolate, finely 

 serrulate with a short stalk, usually about 22 mm long. Catkins 

 hairy, densely flowered, somewhat coetaneous sessile or subsessile ac- 

 companied with a few lanceolate sparingly hairy bractlike leaves at 

 the base. Male catkins cylindrical 40 — 60 mm long, 8 — 10 mm 

 thick, more or less recurved ; scales obovate or ovate, tips rounded and 

 discolored with a dark purple to a faintly rosy purple color in fresh 

 specimens, and thinly covered with soft hairs ; stamens 2, united into 

 a single body at the whole length of the filaments, hairy at the base, 

 anthers at first of a rosy purplish color, afterward yellowish ; gland 1, 

 superior, flat, ovate with a slightly constricted neck. Female catkins 

 narrowly cylindrical, elongated, recurved or flexuous ; scales similar with 

 those of the male in the form, size, and color ; capsules ovate-conical, 

 sessile, ashy white tomentose, equal to or shorter than the scales in 

 height at anthesis ; style none or very short ; stigma dark purple 

 when fresh, divided into two parts, each of which is slightly notched. 

 Seeds club-shaped, 1J mm in length. 



Habitat : On the gravelly banks and on the moist ground near 

 streams ; in the provinces of Iburi and Ishikari. Flowers in the later 

 part of April, and fruits in May. 



Remarks. We have at first taken the present species as a form of 

 Salix Purpurea, L. or at least as one very nearly related to that species. 

 Captain von Seemen has pointed out their differences and established 

 it as a distinct species. To his opinion we agree after the renewed 

 careful studies of the fresh materials. 



The present species differs from Salix purpurea in the following 

 characters : — The stipules of the present species are narrowly lanceolate 

 and considerably developed, while those of Salix purpurea are semi- 

 ovate, very small or obsolete ; the capsules of the former are shorter 



